Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 166 13 1 found under Brush Electrical Co by Enersys Ltd. The National Stock Number assigned to this part is 5977009824690, and the Federal Supply Class is 5977 Electrical Contact Brushes And Electrodes. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 166 13 1.